Mid-infrared quantum cascade lasers with high wall plug efficiency

Y. Bai; B. Gokden; S. Slivken; S. R. Darvish; S. A. Pour; M. Razeghi

doi:10.1117/12.810281

Mid-infrared quantum cascade lasers with high wall plug efficiency

Y. Bai, B. Gokden, S. Slivken, S. R. Darvish, S. A. Pour, M. Razeghi^*

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

We demonstrate optimization of continuous wave (cw) operation of 4.6 μm quantum cascade lasers (QCLs). A 19.7 μm by 5 mm, double channel processed device exhibits 33% cw WPE at 80 K. Room temperature cw WPE as high as 12.5% is obtained from a 10.6 μm by 4.8 mm device, epilayer-down bonded on a diamond submount. With the semi-insulating regrowth in a buried ridge geometry, 15% WPE is obtained with 2.8 W total output power in cw mode at room temperature. This accomplishment is achieved by systematically decreasing the parasitic voltage drop, reducing the waveguide loss and improving the thermal management.

Original language	English (US)
Article number	72220O
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7222
DOIs	https://doi.org/10.1117/12.810281
State	Published - 2009
Event	Quantum Sensing and Nanophotonic Devices VI - San Jose, CA, United States Duration: Jan 25 2009 → Jan 28 2009

Keywords

Mid infrared
Quantum cascade lasers
Wall plug efficiency

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.810281

Cite this

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title = "Mid-infrared quantum cascade lasers with high wall plug efficiency",

abstract = "We demonstrate optimization of continuous wave (cw) operation of 4.6 μm quantum cascade lasers (QCLs). A 19.7 μm by 5 mm, double channel processed device exhibits 33% cw WPE at 80 K. Room temperature cw WPE as high as 12.5% is obtained from a 10.6 μm by 4.8 mm device, epilayer-down bonded on a diamond submount. With the semi-insulating regrowth in a buried ridge geometry, 15% WPE is obtained with 2.8 W total output power in cw mode at room temperature. This accomplishment is achieved by systematically decreasing the parasitic voltage drop, reducing the waveguide loss and improving the thermal management.",

keywords = "Mid infrared, Quantum cascade lasers, Wall plug efficiency",

author = "Y. Bai and B. Gokden and S. Slivken and Darvish, {S. R.} and Pour, {S. A.} and M. Razeghi",

year = "2009",

doi = "10.1117/12.810281",

language = "English (US)",

volume = "7222",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Quantum Sensing and Nanophotonic Devices VI ; Conference date: 25-01-2009 Through 28-01-2009",

}

TY - JOUR

T1 - Mid-infrared quantum cascade lasers with high wall plug efficiency

AU - Bai, Y.

AU - Gokden, B.

AU - Slivken, S.

AU - Darvish, S. R.

AU - Pour, S. A.

AU - Razeghi, M.

PY - 2009

Y1 - 2009

N2 - We demonstrate optimization of continuous wave (cw) operation of 4.6 μm quantum cascade lasers (QCLs). A 19.7 μm by 5 mm, double channel processed device exhibits 33% cw WPE at 80 K. Room temperature cw WPE as high as 12.5% is obtained from a 10.6 μm by 4.8 mm device, epilayer-down bonded on a diamond submount. With the semi-insulating regrowth in a buried ridge geometry, 15% WPE is obtained with 2.8 W total output power in cw mode at room temperature. This accomplishment is achieved by systematically decreasing the parasitic voltage drop, reducing the waveguide loss and improving the thermal management.

AB - We demonstrate optimization of continuous wave (cw) operation of 4.6 μm quantum cascade lasers (QCLs). A 19.7 μm by 5 mm, double channel processed device exhibits 33% cw WPE at 80 K. Room temperature cw WPE as high as 12.5% is obtained from a 10.6 μm by 4.8 mm device, epilayer-down bonded on a diamond submount. With the semi-insulating regrowth in a buried ridge geometry, 15% WPE is obtained with 2.8 W total output power in cw mode at room temperature. This accomplishment is achieved by systematically decreasing the parasitic voltage drop, reducing the waveguide loss and improving the thermal management.

KW - Mid infrared

KW - Quantum cascade lasers

KW - Wall plug efficiency

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DO - 10.1117/12.810281

M3 - Conference article

AN - SCOPUS:62449241915

SN - 0277-786X

VL - 7222

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 72220O

T2 - Quantum Sensing and Nanophotonic Devices VI

Y2 - 25 January 2009 through 28 January 2009

ER -

Mid-infrared quantum cascade lasers with high wall plug efficiency

Abstract

Keywords

ASJC Scopus subject areas

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